Practice problem
Which of the following is a perfect square trinomial?
x2−16x−64x^2 - 16x - 64x2−16x−64
x2+16x−64x^2 + 16x - 64x2+16x−64
x2−25x+50x^2 - 25x + 50x2−25x+50
x2−16x+64x^2 - 16x + 64x2−16x+64
Type a concept, like “slope” or “photosynthesis”.
